Washer or button feeding attachment for setting-machines.



E. B. STIMPSON.

WASHER 0R BUTTON FEEDING ATTACHMENT FOR SETTING MAGHINES.

Patented May 25, 1909.

2 SHEETS-SHEET 1.

APPLIOATION FILED JULY 2, 1908.

s cc, WASHINGTON, 124 c.

equ ally miirn 'EDWIN BALL STIMPSON, OF BROOKLYN,

STAEB NEW YORK, ASSIGNOR TO EDWIN B. STIMPSON COMPANY, A CORPORATION OFNEW YORK.

WASHER OR BUTTON FEEDING ATTACHMENT FOR SETTING-MACHINES.

Specification of Letters Patent.

Patented May 25, 1909.

Application filed July 2, 1908. Serial No. 441,615.

T all whom it may concern:

Be it known that I, EDWIN BALL STIMP- SON, a citizen of the UnitedStates, and a resident of the borough of Brooklyn, county of Kings, andState ol- New York, have invented a certain new and useful vVasher orButton Feeding Attachment for Setting- Machines, of which the followingis a specilication.

My present invention relates to improvements in an attachment forsetting machines adapted to feed washers, buttons and so l'orth, and thedevice is adapted to be removably attached to existing setting machineswherein the washer or button feed is by hand or is otherwise so slow andefiicient as to make the present automatic leed attachment desirable.

In the drawings which show only one of the forms which my improvementsmay take together with a modification oi the connecting means between myattachment and a moving part of the setting machine, Figure 1 is a sideelevation of a setting machine of a common type showing my attachmentfitted thereto; Fig. 2 is a )artial view of the same showing a modifiedconnecting means between the attachment and a moving part of themachine; Fig. 3 is an enlarged view partly in vertical section andpartly in eleva tion of the connecting means shown in Fig. 1 Fig. 4 is aplan view of the clamp shown in Fig. 3 and further comprises ahorizontal section through the stem 34 of the piston; Fig. 5 is a frontelevation on an enlarged scale of a portion of the machine and attach.-ment shown in Fig. 1; Fig. 6 is the same except that the view isinostlyin verticalsection taken at right-angles to the view shown inFig. 5; Fig. 7 is a view partly in elevation and partly in verticalsection on the line 77 in Fig. 8, looking in the direction of the arrow;and Fig. 8 is a view partly in elevation and artly in vertical sectionon the line 8-8 in Fig. 7, both of said views, Figs. 7 and. 8, beingstill further enlarged views 01' the barrel-end of my attachment.

I will now describe the devices of the drawings wherein my attachment isshown in connection with a post-machine, although it will be understoodthat the attachment is applicable to arm-machines, the difference beingthat in connection with the latter type of machine the attachment willordinarily be clamped to the machine arm, its

magazine tube running lengthwise or horizontally on the arm. Otherwisethe attachment will be the same except for such slight modifications asmay be necessary to conform it to its changed position on the machinearm. Thus, since the attachment is applicable to setting machines ingeneral, the particular form or kind thereof in connection with which itis illustrated becomes unimportant, and consequently has been shown onlyin a general way, as comprising a base 1, a pillar 2, a head 3 apost-supporting arm 4, a treadle 5, and connecting rods 6 adapted tooperate the machine head from the treadle through arm 6 Of course itwill be understood that the machine head comprises suitable operativerivet or other setting devices.

Describing now my own attachment as illustrated, same comprises atubular magamachines in the post-opening in the arm. The tubularmagazine is adapted to hold the washers 8 in a pile spring-pressed frombelow by spiral spring 9. A screw-plug 10 closes the bottom of the tubeand acts as a rest for the spiral spring. Above, the follower 1.1 may beprovided between the washers and the spring with a chain 12 dependingfrom the follower and coming out of the tube through an opening in thescrew-plug 10 said chain being well known and having for its purpose theremoval of spring tension on the pile of washers during the filling ofthe magazine, the particular magazine shown being filled from the topthrough opening 13 or otherwise as may be desired. The magazine tube isadapted to be supported adjustably as to vertical height in thepost-opening and has for this purpose external screwthreads 14 engagedby nuts 15, adapted to be located one on either side of the top and bottom of the machine arm 4. Suitable openings 16 in these nuts may beprovided for engagement with a s anner-wrench.

At its upper or de ivery end the magazine supports a rotatable barrel18. This barrel 1 has peripheral recesses 19, each adapted whenpresented over the mouth of the magak zine to receive a washer or otherpart fed into i l it from the magazine, whereupon the barrel is adaptedto be rotated to feed away said washer from the mouth of the magazineand to present another peripheral recess thereto. The barrel for thispurpose is adapted to re ceive intermittent rotation by means hereinzine7 adapted to be inserted in existing postafter described and isconveniently supported between cars 20, conveniently formed integralwith the magazine tube, on a hub 51 driven through opposite openings insaid ears. It will be understood that the barrel is rotatable about thehub as an axis. The guard 23 formed out of an integral portion of themagazine tube, which by its close juxtaposition to the rotating barrelprevents the washer which has been fed into the barrel recess fromdropping out as the barrel turns to present the recess in inclined andvertical positions, or until said recess reaches its horizontal or topposition, which it will be noted is directly under or in line with themachine head. It is when the washer or other part is in this positionthat the riveting operation takes place by the action of the machinehead, this usually consisting in the machine head delivering the shankof a rivet through the material, interposed for the purpose, and thencethrough the opening in the washer if it be a washer, until the rivetshank is upset by contact with the bottom of the washer I recess and isclenched against the underside of the washer. For this purpose it willbe noted that there is a space in each peripheral recess below thewasher, the bottom 24 of which acts as an anvil. Moreover it will benoted that the particular recesses shown have a central projection 25especially adapted to spread the shanks of bifurcated or tubular rivets,but this feature will of course vary.

The means shown for intermittently rotating the barrel 18 comprisesratchet teeth 26 formed in one end of the barrel in position to beengaged by a spring-pressed pin or pawl 27 mounted at the end of aswinging arm 28 having bearing on an end of the hub 51 and beingretained against endwise displacement between a shoulder on the hub anda washer 52 held against the end of the hub by a screw 53. This pawl arm28 connects by a link 29 with sleeve 30 slidable up and down on themagazine tube, said sleeve in turn being adapted to be reciprocatinglydriven from a suitable moving part of the machine as for exampledirectly from the treadle 5 or indirectly from the arm 6 that operatesthe machine head. The former arrangement is shown in Fig. 1 and thelatter in Fig. 2. In both cases the operative connections between myattachment and the machine comprise a yielding connection which in theparticular form shown consists of a tube 31 having a rod 32 secured toone end and an apertured plug 33 in the other end through which projectsthe stem 34 of the piston 35, the piston having on either side of itwithin the tube spiralv springs 36. Thus describing first thearrangement shown in Fig. 1, the reciprocating sleeve on the magazinetube is connected di rectly with the treadle by a yielding connectionconsisting of the parts just described in which the rod 32 is pivotallyconnected with the sleeve and the stem 34 of the piston pivotallyconnects with a clamp 37 which in the form shown comprises a U shapedmember with a set screw 38 through one of its limbs to engage againstthe arm of the treadle when the latter is located within the U asindicated in Fig. 1. The arrangement shown in Fig. 2 di'lfers from thatin Fig. 1 to the extent of securing the clamp to the arm 6 that operatesthe head and connecting the rod 32 pivotally with one end of a walkingbeam 45 pivoted to a supporting clamp 46 which likewise may consist of aU shaped member adapted to receive between its limbs the ma chine armand to be clamped thereto by tak ing up on a set screw 47. The other endof the walking beam connects by a link 48 with the reciprocating sleeveon the magazine tube. Describing now the operation of these mechanismsto intermittently rotate the barrel, it will be noted in the first placethat said barrel has four peripheral recesses, although of course it maybe provided with an additional number should the conditions make itdesirable. Moreover there being four reoesses, the intermittent rotationof the barrel comprises four quarter turns to the revolution. Thus eachupward throw of the pawl arm 28 advances the barrel a quarter turn, thesaid upward throw being derived from the upstroke of the sleeve 30 onthe magazine tube brought about through its connect ing members with themachine, said upward throw taking place preferably as shown upon theupward motion or release of the treadle. Reversely it will be noted froman inspection of Figs. 1 and 2 that depressing the treadle gives thesleeve on the magazine tube a downstroke which in turn swings the pawlarm downward until its spring-pressed pin or pawl 27 engages with thenext ratchet tooth behind preparatory to giving the barrel its nextforward quarter turn by its pushing engagement with said tooth.

NVhereas the attachment of my present invention is intended to be usedwith various setting machines wherein the stroke of the treadle and ofthe arm 6 will of course vary, and whereas the length of the swing ofthe pawl arm of the attachment is a more or less fixed factor, I arrangeto confine the reciprocation of the sleeve 30 on the magazine tubebetween stops 39 and take up the excess and the variations in the lengthof treadle and arm stroke by the described connections between thesleeve and the machine. Thus when the upper stop 39 is reached duringthe upward stroke of the sleeve 30, the described connections with thetreadle or arm 6 permit said parts to continue on their motion in spiteof the fact that the sleeve 30 is at rest because the piston 35 and tube31 can telescope on each other with the only result of compressing oneof the springs 36 and without any possible injury being done to any ofthe parts of my attachment. The same thing is true on the down-stroke ofthe sleeve 30, this likewise being independent of whether the treadle orthe arm continues to move after the sleeve is in contact with the lowerstop 39 because of the same elastic piston and tube connection.

It may be noted that means is preferably provided to make the sleevereciprocate on the magazine tube in a straight line, said meanscomprising in the particular form shown a vertical groove 40 in the wallof the tube adapted to receive two lugs, depressions or screws 41 formedon the inside of the sleeve, one vertically over the other.

In order to center the washer recesses under the machine head in properriveting or operating position and prevent backward motion of the barrel18 when the pawl arm 28 is on its back stroke, a spring-pressed pin 42is provided to engage suitable spaced openings or depressions 43 in theend of the barrel, said pin being conveniently supported at the end of aleaf-spring 54 the other end of which surrounds the hub 51 and is heldbetween the head of the latter and the adjacent ear 20 of the magazinetube.

Having thus described my invention, what I claim is:

1. An attachment for feeding washers and the like, adapted to beremovably secured to a setting machine with operative connectiontherewith, said attachment comprising a magazine adapted to contain a suply of washers and the like, an intermittent y rotatable barrel mountedat the delivery opening of the magazine and having peripheral recessesadapted successively to aline with the magazine opening to receive eacha washer therefrom and carry same into a position in line with the headof the machine, where said washer is adapted to be taken up out of theperipheral recess by the operation of the machine head, means adapted tointermittently rotate said barrel including connecting parts on theattachment operatively connected on one hand with the barrel, and on theother hand adapted to be operatively connected with a moving part of themachine, and securing means adapted to secure the attachment to thesetting machine.

2. An attachment for feeding washers and the like adapted to beremovably secured to a setting machine with operative connectiontherewith, said attachment comprising a magazine tube for holding thewashers and the like in a pile spring-pressed from below toward theupper and delivery end of the tube, means adapted to secure saidmagazine tube in various positions of vertical adjustment in thepost-opening in the machine arm, an intermittently rotatable barrelmounted at the delivery end of the magazine tube having peripheralrecesses adapted successively to aline over the mouth of said tube toreceive each a washer therefrom and carry same into a position under thehead of the machine, each washer so carried being adapted to be taken upout of the recess by the operation of the machine head, and meansadapted to intermittently rotate said barrel including connecting meansforming part of the attachment adapted to be connected with a movingpart of the machine to operate the barrel from the machine.

3. An attachment for feeding washers and the like adapted to beremovably secured to a setting machine with operative connectiontherewith, said attachment comprising a magazine adapted to contain asupply of washers and the like and deliver same at its mouth, anintermittently rotatable barrel with peripheral recesses adapted tosuecessively aline with the mouth of the magazine to receive washerstherefrom and carry same into a position in line with the machine headto be taken up by the operation of said head, means adapted to operatesaid barrel from a moving part of the machine comprising a reciprocatingmember on the attachment having on the one hand a connecting rod adaptedto be removably secured to the moving part of the machine, and having onthe other hand a ratchet and pawl connection with the barrel adapted togive it a partial rotation to feed a washer away from the magazine mouthtoward its taking up position by the machine head preparatory to theoperation of said head.

4. An attachment for feeding washers and the like adapted to beremovably secured to a setting machine with operative connectiontherewith, said attachment comprising a magazine adapted to contain asupply of washers and the like and deliver same at its mouth, anintermittently rotatable barrel with peripheral recesses adapted tosuccessively aline with the mouth of the magazine to receive Washerstherefrom and carry same into a .position in line with the machine headto be taken up by the operation of said head, means adapted to operatesaid barrel from a moving part of the machine comprising a reciprocatingmember on the attachment having on the one hand an extensible andcontractible connecting rod adapted to be removably secured to themoving part of the machine and having on the other hand a ratchet andpawl connection with the barrel adapted to give it a partial rotation tofeed a washer away from the magazine mouth toward its taking up positionby the machine head preparatory to the operation of said head.

5. A tubular magazine adapted to contain a pile of washers and the likeand to be received in upright position in the post-opening of a settingmachine, said tube being externally screw-threaded and provided withnuts to engage the machine arm above and below.

6. In combination, a tubular magazine adapted to contain a pile ofwashers and the like and to deliver same toward one end of the tube,said tube at its delivery end having integral ears adapted to pivotallysupport between them a rotating barrel and further having a guard-lug injuxtaposition with the eriphery of said barrel; and said barrel avlngperipheral recesses adapted successively to ahne with the delivery endof the magazine to receive washers therefrom, said barrel being adaptedto be intermittently rotated and the guard-lug being adapted to preventthe washers from dropping out of the recesses as said recesses assumeinclined positions.

7. In combination a magazine consisting of a tube adapted to holdwashers and the like in stacked relation and to give said washers anormal tendency toward one end of the tube; delivery means at thedelivery end of the tube adapted to deliver washers successively fromthe tube in line with the settingdevices of the machine; means ada tedto secure the .magazine tube removal ly on the machine; a sleeveslidable on the magazine tube and having operative connection with thedelivery means to operate said means from the reciprocation of thesleeve; and a connection adapted to be made between said sleeve and amoving part of the machine to reciprocate said sleeve from the movingpart, said connection comprising a tube, a piston working within thetube, and a spring on either side of the piston confined between it andthe sleeve.

8. In combination with a setting machine a tubular magazine adapted tohold washers and the like in stacked relation and to give said washers anormal tendency toward one end of the tube; and means movable across thedelivery end of the tube, having spacedapart seats adapted to receivewashers from the tube and deliver same to the setting devices.

In witness whereof, I have signed my name to the foregoing specificationin the presence of two subscribing witnesses.

EDWIN BALL STIMPSON.

Witnesses:

E. W. SGHERR, Jr., ROBERT H. THOMSON.

